10+0.30x=7+0.40x

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Solution for 10+0.30x=7+0.40x equation: 



10+0.30x=7+0.40x

We move all terms to the left:

10+0.30x-(7+0.40x)=0

We add all the numbers together, and all the variables

0.30x-(0.40x+7)+10=0

We get rid of parentheses

0.30x-0.40x-7+10=0

We add all the numbers together, and all the variables

-0.1x+3=0

We move all terms containing x to the left, all other terms to the right

-0.1x=-3

x=-3/-0.1

x=+30

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